Metrode 2507-XKS description: Superduplex stainless steel pipe, plate, fittings and forgings have an approximate 50:50 microstructure of austenite with a ferrite matrix. This, coupled with general alloying level confers:
- high strength compared with standard austenitic steels eg. type 316L.
- good general corrosion resistance in a range of environments.
- high resistance to chloride induced stress corrosion cracking (CSCC).
- high resistance to pitting attack in chloride environments eg. seawater.
These alloys are finding widening application in the offshore oil/gas, chemical and petrochemical process industries, eg. pipework systems, flowlines, risers, manifolds etc.